Video: Qhov loj ntawm oxygen molecule hauv KG yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dab tsi yog qhov loj ntawm ib oxygen atom hauv kilogram ? Thiab 16 grams yog 0.02 kgs.
Ib yam li ntawd, tib neeg nug, qhov loj ntawm cov pa oxygen molecule yog dab tsi?
Pawg ntawm O2 molecule yog: Oxygen cov atomic hnyav yog 16.00 amu. 1 mol ua oxygen 6.02 × 1023 atoms ntawm oxygen 1 awm = 1.
Yuav ua li cas koj pom qhov loj ntawm ib tug oxygen atom? Rau xam tus pawg ntawm ib leeg atom , thawj saib lub atomic mass ntawm oxygen los ntawm lub sijhawm teem sijhawm. > pawg ntawm 1 Oxygen atom Luas = 2,65 x 10^-23 g. Kwv yees li 18 amu's ( atomic loj unit) xav tias nws yog ib qho oxygen -16 isotope cov. Electrons muaj ib tug negligible npaum li cas ntawm pawg.
Yog li ntawd, qhov loj ntawm o2 molecule hauv KG yog dab tsi?
Muaj tiag muaj yooj yim The pawg ntawm 1 mole oxygen atoms yog nyob ib ncig ntawm 16 grams (15.9994 g kom meej). Tam sim no ib mole hais txog 6.022 * 10²³ atoms. Yog li yog tias koj faib 16 g los ntawm tus lej no, koj tau txais 2.656 * 10^-23 grams raws li tus nqi ntawm pawg ntawm ib oxygen atom.
Dab tsi yog qhov loj ntawm ib ion ntawm oxygen?
Pawg hais txog qhov ntsuas ntawm tus lej ntawm atoms hauv ib element los yog compound. Tam sim no, txij li 1 mole ntawm oxygen atoms = 16 units thiab txhua mole ntawm oxygen muaj 6.023 × 1023 atoms, Li no, 1 oxygen ion hnyav = 1 /6.023 × 1023 ua.
Pom zoo:
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